Polish inventor in 1922. While the first prototype of the appliance was specifically designed to make soda fountain drinks, it wasn't long before it became popular for more than just drinks. By 1937, ...
Sunspot AR3234 erupted with several M-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Credit: Space.com | footage courtesy: NASA/SDO/Helio Viewer| ...